Consider a thick wire with a uniform volume current density J (like in example 5.4 of Griffiths). If you try to directly apply the result of this problem to a section of the wire, the result seems to contradict the steady-state nature of the configuration. How do you resolve this? Answer it from the perspective of both the ways of solving this problem (i.e., the approach using the hint in the textbook, as well as that of part (a) above)